What is the function of a flow meter during NFPA 20 acceptance testing?

What is the function of a flow meter during NFPA 20 acceptance testing?

• A. Measure discharge flow and verify that the pump meets its rated capacity.
• B. Measure discharge pressure.
• C. Measure electrical current draw.
• D. Measure temperature of the discharge.

Answer: (A)

In NFPA 20 acceptance testing, proving that the pump can deliver its rated water flow is essential. A flow meter in the discharge line provides a direct measurement of how many gallons per minute the pump actually moves when running at the test point, so you can compare it to the pump’s rated capacity and verify it meets the specification. This hydraulic performance check hinges on flow data, not just pressure, current, or temperature. Pressure gauges show head but not how much water is delivered, current draw indicates motor load rather than flow, and discharge temperature isn’t a measure of pump capacity. Therefore, the flow meter is the best tool to confirm the pump meets its rated discharge.

In NFPA 20 acceptance testing, proving that the pump can deliver its rated water flow is essential. A flow meter in the discharge line provides a direct measurement of how many gallons per minute the pump actually moves when running at the test point, so you can compare it to the pump’s rated capacity and verify it meets the specification. This hydraulic performance check hinges on flow data, not just pressure, current, or temperature. Pressure gauges show head but not how much water is delivered, current draw indicates motor load rather than flow, and discharge temperature isn’t a measure of pump capacity. Therefore, the flow meter is the best tool to confirm the pump meets its rated discharge.